Debit card services; debit card and payment card services, namely, providing payment processing and management of debit and other payment card transactions; providing web-based, automated and customized cardholder services, namely, customized management of cardholders' debit card accounts to establish authorization parameters and transaction limits; debit card and payment card services, namely, authorization of card-based payment transactions to limit approval of transactions to only those which meet processing criteria identified by the cardholder; debit card services, namely, card processing services featuring electronic notifications to alert debit card users whenever a transaction is initiated, approved or declined because the transaction exceeded authorization parameters or transaction limits; debit card and payment card services, namely, mobile alert services for providing notifications to cardholders in response to pre-defined notification options